Final answer:
A current in a photoconductive cell requires a flow of many electrons; therefore, the ejection of a single electron from a photon strike does not create a measurable current, making the statement false.
Step-by-step explanation:
The question whether a current is created in a photoconductive cell as a result of just one electron being expelled from a photon strike is a matter of understanding the basic principles of photoconductivity and the nature of electric current. In a photoconductive cell, when photons strike the material and have enough energy, they can expel electrons from their atomic orbits, known as the photoelectric effect. However, for a current to be observed, it usually requires a flow of many electrons; a single electron does not constitute a measurable current. Thus, the statement that a current is created with the ejection of a single electron from a photon strike is false.